42828940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:200

約数の個数: 144

約数和(自身を含む): 118933920

約数和(自身を除く): 76104980

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 29, 35, 44, 49, 55, 58, 70, 77, 98, 110, 116, 137, 140, 145, 154, 196, 203, 220, 245, 274, 290, 308, 319, 385, 406, 490, 539, 548, 580, 638, 685, 770, 812, 959, 980, 1015, 1078, 1276, 1370, 1421, 1507, 1540, 1595, 1918, 2030, 2156, 2233, 2695, 2740, 2842, 3014, 3190, 3836, 3973, 4060, 4466, 4795, 5390, 5684, 6028, 6380, 6713, 7105, 7535, 7946, 8932, 9590, 10549, 10780, 11165, 13426, 14210, 15070, 15631, 15892, 19180, 19865, 21098, 22330, 26852, 27811, 28420, 30140, 31262, 33565, 39730, 42196, 43703, 44660, 52745, 55622, 62524, 67130, 73843, 78155, 79460, 87406, 105490, 111244, 134260, 139055, 147686, 156310, 174812, 194677, 210980, 218515, 278110, 295372, 305921, 312620, 369215, 389354, 437030, 556220, 611842, 738430, 778708, 874060, 973385, 1223684, 1476860, 1529605, 1946770, 2141447, 3059210, 3893540, 4282894, 6118420, 8565788, 10707235, 21414470, 42828940]

約数ペア:

[(1, 42828940), (2, 21414470), (4, 10707235), (5, 8565788), (7, 6118420), (10, 4282894), (11, 3893540), (14, 3059210), (20, 2141447), (22, 1946770), (28, 1529605), (29, 1476860), (35, 1223684), (44, 973385), (49, 874060), (55, 778708), (58, 738430), (70, 611842), (77, 556220), (98, 437030), (110, 389354), (116, 369215), (137, 312620), (140, 305921), (145, 295372), (154, 278110), (196, 218515), (203, 210980), (220, 194677), (245, 174812), (274, 156310), (290, 147686), (308, 139055), (319, 134260), (385, 111244), (406, 105490), (490, 87406), (539, 79460), (548, 78155), (580, 73843), (638, 67130), (685, 62524), (770, 55622), (812, 52745), (959, 44660), (980, 43703), (1015, 42196), (1078, 39730), (1276, 33565), (1370, 31262), (1421, 30140), (1507, 28420), (1540, 27811), (1595, 26852), (1918, 22330), (2030, 21098), (2156, 19865), (2233, 19180), (2695, 15892), (2740, 15631), (2842, 15070), (3014, 14210), (3190, 13426), (3836, 11165), (3973, 10780), (4060, 10549), (4466, 9590), (4795, 8932), (5390, 7946), (5684, 7535), (6028, 7105), (6380, 6713)]